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SVETLANKA909090 [29]
3 years ago
5

Help me plz ..........​

Mathematics
1 answer:
ankoles [38]3 years ago
6 0

Answer:

99

Step-by-step explanation:

(40+49)+10=89+10=99

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Rewrite 302+40=342 in a different way, using the commutative of addition
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Step-by-step explanation:

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7 0
1 year ago
the area of a trapezoid is 780 cm squared. the shorter base is 48 cm and the height is 15 cm. Find the length of the other base
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5 0
3 years ago
Find the smallest possible solution to 2/3x^2=24
Bezzdna [24]
\dfrac{2}{3} x^2 = 24

---------------------------------------------------------------------
Divide by 2/3 on both sides :
---------------------------------------------------------------------
x^2 = 24 \div  \dfrac{2}{3}

---------------------------------------------------------------------
Change the divide fraction to multiplication fraction :
---------------------------------------------------------------------
x^2 = 24 \times  \dfrac{3}{2}

---------------------------------------------------------------------
Simplify :
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x^2 = 36

---------------------------------------------------------------------
Square root both sides :
---------------------------------------------------------------------
x = \pm \sqrt{36}

---------------------------------------------------------------------
Answer :
---------------------------------------------------------------------
x = \pm6

---------------------------------------------------------------------
Answer: The smallest possible value of x is -6
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4 0
3 years ago
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